A word from Brandi, the 'Bi-Plane Pilot' costume creator:

This is Caedyn the pilot with his plane made from a trash can sat on top of a walker with the handles removed. The propeller is an old ceiling fan blade covered with construction paper and the wings are some wood and PVC from grandpa's garage. We had tons of compliments including one little boy telling Caedyn "you're the luckiest boy in the whole world"
The plane maneuvered well over all types of terrain.